This data repository contains the original figures, numerical (raw) data, and plot scripts to reproduce the figures from the publication "Fermi and Luttinger Arcs: Two Concepts, Realized on One Surface" at Physical Review Letters. LaTeX source files and the preprint is available on arXiv under the CC-BY license.

The CC-BY license applies to all the data, png and pdf files. All distributed code is under the MIT license.

Note that the scripts are using two different, but compatible python libraries DGApy and correl (see below for details). The analytical expressions of the proposed model have been either calculated with the script "mymodel.py" or with "correl.pseudogap.py".

For the Python scripts, the following non-standard libraries have been used:

• DGApy, which is availabe on github
• correl 0.1.21, which is installable via pip and available on TUgitlab

The detailed versions of python packages used can be found in the enclosed 'python_versions.txt' file.

Further, a installed version of LaTeX is required to run the plot scripts. (used version: pdfTeX 3.141592653-2.6-1.40.22 (TeX Live 2022/dev/Debian))

To obtain the source files of the DGammaA calculations, the w2dynamics DMFT solver was employed. Calculations have been performed using the DGApy framework. Analytical continuation was performed with the ana_cont package.

The folder structure of the repository is the following:

project
│   README.md
│   FIG1.pdf         figure of the publication
|   FIG2.png         figure of the publication
|   FIG3.png         figure of the publication
|   FIG4.png         figure of the publication
|   FIGS1.png        figure of supplemental material
|   FIGS2.pdf        figure of supplemental material
|   FIGS3.png        figure of supplemental material
|   FIGS4.png        figure of supplemental material
|   FIGS5.pdf        figure of supplemental material
|   FIGS6.png        figure of supplemental material
|   FIGS7.png        figure of supplemental material
|   FIGS8.png        figure of supplemental material
|   FIGS9.pdf        figure of supplemental material
|   FIGS10.pdf       figure of supplemental material
|   FIGS11.pdf       figure of supplemental material
|   FIGS12.png       figure of supplemental material
|   FIGS13.pdf       figure of supplemental material
│
└───Scripts                Python scripts to create the figures
|   |   style.py                        auxiliary python file for plotting
|   |   AuxilliaryFunctions.py          auxiliary python file for plotting
|   |   mymodel.py                      auxiliary python file with model functions
|   |   Fig1_phasediagram.py            file to create FIG1
|   |   Fig2_FermiSurface.py            file to create FIG2
|   |   Fig3_doping_beta12.5.py         file to create FIG3
|   |   Fig4_EDC_cuts.py                file to create FIG4
|   |   SM_Fig1_doping_beta22.5.py      file to create FIGS1 of the supplemental
|   |   SM_Fig4_EvolutionOfSpectrum.py  file to create FIGS4 of the supplemental
|   |   SM_Fig5_greensfunction.py       file to create FIGS5 of the supplemental
|   |   SM_Fig6_dga_sigma.py            file to create FIGS6 of the supplemental
|   |   SM_Fig7_ReG_and_dispersion.py   file to create FIGS7 of the supplemental
|   |   SM_Fig8_positive_tp.py          file to create FIGS8 of the supplemental
|   |   SM_Fig9_A0_doping.py            file to create FIGS9 of the supplemental
|   |   SM_Fig10_paper_fl_surf.py       file to create FIGS10 of the supplemental
|   |   SM_Fig11_cv.py                  file to create FIGS11 of the supplemental
|   |   SM_Fig12_high_T_comparison.py   file to create FIGS12 of the supplemental
|   |   SM_Fig13_V_comparision.py       file to create FIGS13 of the supplemental
│   
└───DgaData                source files of DGammaA calculations
    |                      for a 2D-square lattice Hubbard model with 
    |                      U=8, t=1, tp=-0.2, tpp=0.1
    |                      containing analytical continuation data
    |                      naming convention: inverse temperature: beta
    |                                          doping/filling:     n
    └───2DSquare_U8_tp-0.2_tpp0.1_beta[beta]_n[n] 
        |
        └───MaxEntSiwk     files from the analytical continuation of the self-energy in k-space
        |   |....
        |
        |   ....            DGammaA auxilary files and input data